The MBH Difference
Built in Phoenix.
Proven on the dyno.
Guaranteed for life.
We build headers, downpipes and ECU tuning for one brand only: Mercedes-Benz. Here's what separates a hand-built MBH system from the mass-produced parts it gets compared to.
Made in USA · 16ga T-304Side by side
MBH vs. the rest
A header or downpipe is only as good as the tube, the welds and the engineering behind it. This is where the money goes.
| Feature | MBH Premier Elite · USA | Typical mass-produced import |
|---|---|---|
| Where it's built |
Fabricated in Phoenix, Arizona |
Often mass-produced overseas |
| Tube material |
Heavy duty 16 gauge T-304 American stainless |
Fake 304 or low grade Stainless steel |
| Welding |
Precision TIG welded |
Tack welded with minimal weld penetration |
| Flanges |
Thick CNC-machined 304 stainless and machined flat |
Thin flanges that can warp under heat |
| Engineering |
Platform-specific: Tri-Y long tubes with 2" primaries, 3"–3.5" downpipes |
Often copies or knockoffs of other products |
| Testing |
Developed and proven in-house on a Dyno Dynamics dyno |
Gains often unpublished or untested |
| Tuning |
Calibrations built around MBH hardware |
Generic maps not matched to the exhaust |
| Fitment |
Clean fitment. Downpipes install in about an hour, no cutting |
Fitment can need massaging or modification |
| Inspection |
Every header checked for weld consistency and port cleanliness before it ships |
Batch inspection, if any |
| Warranty |
Lifetime warranty on USA-made headers & downpipes |
Limited or short-term coverage |
| Focus |
Mercedes-Benz only, for over 15 years |
Many makes, many platforms |
"Typical import" describes common traits of mass-produced aftermarket exhaust, not any specific brand.
Three parts, one system
Engineered to work together
Headers and downpipes free the exhaust. Our tune is written to take advantage of exactly that hardware. That's why the biggest numbers come from running all three.
Tri-Y · 2" primaries01 / Long tube headers
Tri-Y headers that scavenge
Our long tubes use a Tri-Y layout with large 2-inch primaries at a precisely calculated length. Exhaust pulses pull spent gas out of the ports instead of fighting each other, so power climbs through the entire rev range without giving up low-end torque.
- Tri-Y designSuperior scavenging compared with traditional long tubes
- 2" 16-gauge primariesSized for the breathing needs of the AMG V8
- Billet stainless flangesCNC-milled on select systems like the SLS for a leak-free seal
- Track-provenZero header failures to date, on builds past 600 whp
Mandrel bent · T-30402 / Biturbo downpipes
Downpipes that let the turbos breathe
Factory downpipes are the biggest bottleneck on a biturbo Mercedes. Ours open the path straight off the turbine with smooth, mandrel-bent 3-inch tubing, and 3.5-inch on the W213 E63 S. Turbos spool sooner, exhaust temps drop and the V8 finally sounds like an AMG.
- 3" to 3.5" tubingMore 3.5" tubing on the E63 S than any other system available
- Faster spool, lower EGTsBackpressure drops, boost arrives sooner
- 1-hour bolt-onBasic hand tools, zero cutting or fabrication
- Billet flangesMachined from solid stainless on systems like the G63 to stop heat warping
Dyno-developed03 / ECU tuning
A tune written for the hardware
Every MBH calibration is developed on the dyno and on the street. We optimize timing, air-fuel ratios and boost curves around the airflow our headers and downpipes create, instead of just turning boost up.
- Matched to MBH exhaustCalibrated to the scavenging and spool of our hardware
- OEM safeguards keptKnock detection, thermal limits and torque management stay active
- Sharper throttleFactory pedal dead zones removed for instant response
- Flash from homeRemote OBD2 tuning. No pulling or mailing your ECU
Proven gains
The numbers don't lie
Published gains from our own product pages. Tap a car to see the parts.
G63 AMG
Downpipes + tune
E63 S AMG
3.5" downpipes + tune
GLC63 AMG
Downpipes + tune
GL63 AMG
Downpipes + tune
C63 AMG
Long tubes + tune
S63 AMG
Downpipes + tune
SLS AMG
Long tubes + tune
E55 AMG
Long tubes only
Gains over stock as published by MBH. Results vary with fuel, climate, dyno type and vehicle condition.
Two product lines
Pick your level
Our flagship parts are built by hand in Phoenix. Flowsport gives you proven MBH gains at a lower price.
MBH Premier Elite
Hand-built in the USA for owners who want the best header or downpipe made for their Mercedes.
- Made in Phoenix, AZHand-fabricated, precision TIG welded
- 16-gauge T-304 stainlessBuilt to outlast the car
- Lifetime warrantyAgainst cracks and weld failures
- Maximum gainsOur full Tri-Y and high-flow designs
Flowsport+ Series
A cost-effective way to experience MBH performance, without the cost of our USA-made systems.
- Stainless constructionOptional heatshield wrap to fight heat soak
- Proven power35–40 whp from C63 M156 long tubes
- 5-year limited warrantyRepair or replace in year one
The MBH promise
We stand behind every part
Lifetime warranty
USA-made headers and downpipes are covered for cracks and weld failures, for life.
Horsepower guarantee
Our E55 headers are guaranteed to make at least 40 whp over stock, or your money back.
Inspected by hand
Every header is checked for weld consistency and port cleanliness before it leaves Phoenix.
Mercedes-only specialists
We only build for Mercedes-Benz, so fitment questions get answered by people who know your platform.
Let's make some power
Feel the difference
Pick your Mercedes below and we'll show you every MBH part built for it.
Parts finder
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For off-road racing and competition use only. These products are not intended to be installed on a registered vehicle for use on public roads or highways.